Dr. Peter McKenna:

It is my opinion that the two groups - the 1,482 and the speculative 1,500 - are not similar. I believe there will be less than 208 in the second 1,500. I base that on the fact that the women in the second cohort are more likely to be older and not have gone through the screening programme and will have presented directly to their general practitioners or gynaecological services with bleeding.